import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Scanner;

public class Main {
    public static String myPrint(double n, int t1) {
        String s = "%." + String.valueOf(t1) + "f";
        return String.format(s, n);
    }

    public static String myPrint(double n, int t1, int t2) {
        String s = "%" + String.valueOf(t1) + "." + String.valueOf(t2) + "f";
        return String.format(s, n);
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String s = scanner.nextLine();
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < s.length(); i++) {
            char ch = s.charAt(i);
            if((ch >= 'a' && ch <= 'z')){
                int value = ch - 'a';
                value += 1;
                value %= 26;
                sb.append((char)(value + 'a'));
            }else if(ch >= 'A' && ch<='Z'){
                int value = ch - 'A';
                value += 1;
                value %= 26;
                sb.append((char)(value + 'A'));
            }else{
                sb.append(ch);
            }
        }
        System.out.println(sb.toString());
    }
}